A projector includes an optical engine module, a projection lens module, a heat dissipation module, and a laser module. The laser module includes a positioning member and a laser unit fixed to the positioning member, wherein a positioning member includes a main plate portion and two shoulder portions, the main plate portion includes a first upper surface and a first lower surface opposite to each other, a first front surface and a first rear surface opposite to each other, and a first left side surface and a first right side surface opposite to each other, and the two shoulder portions extend on a plane of the first upper surface from the first left side surface and the first right side surface of the main plate portion, respectively. A laser module is also provided.
Legal claims defining the scope of protection, as filed with the USPTO.
1. A laser module for a projector, and the laser module comprising: a positioning member, comprising a main plate portion and two shoulder portions, wherein the main plate portion comprises a first upper surface and a first lower surface opposite to each other, a first front surface and a first rear surface opposite to each other, and a first left side surface and a first right side surface opposite to each other, and the two shoulder portions extend on a plane of the first upper surface from the first left side surface and the first right side surface of the main plate portion, respectively; and a laser unit, disposed on the first front surface of the main plate portion.
2. The laser module according to claim 1 , wherein the laser unit comprises: a circuit unit; a plurality of laser diodes, disposed on the circuit unit and electrically connected to the circuit unit; and a connection unit, disposed on the circuit unit and electrically connected to the circuit unit, wherein the connection unit is further electrically connected to a power source.
3. The laser module according to claim 1 , further comprising at least one fixing member, wherein the fixing member comprises a fixing portion and two side arms, the two side arms are disposed on opposite ends of the fixing portion, respectively, the fixing portion is disposed on the laser unit, and the two side arms are fixed to the main plate portion to fix the laser unit to the main plate portion.
4. The laser module according to claim 1 , further comprising a thermal conductive adhesive layer disposed between the laser unit and the main plate portion to attach the laser unit to the main plate portion.
5. The laser module according to claim 1 , wherein the first left side surface and the first right side surface of the positioning member are substantially parallel to each other.
6. The laser module according to claim 1 , wherein at least one of the first left side surface and the first right side surface of the positioning member is inclined with respect to the other, such that a distance between the first left side surface and the first right side surface is gradually reduced in a direction from the first upper surface to the first lower surface of the main plate portion.
7. The laser module according to claim 1 , wherein the positioning member further comprises two side plate portions extending from the first rear surface of the main plate portion to the first front surface along the first left side surface and the first right side surface, respectively, the two side plate portions and the main plate portion form a recess, and the recess is configured to accommodate the laser unit.
8. The laser module according to claim 7 , wherein each of the side plate portions comprises an opposite second outer surface and a second inner surface, a second front surface and a second lower surface, the two second inner surfaces of the two side plate portions face each other, and the recess is positioned between the two second inner surfaces.
9. The laser module according to claim 8 , wherein the two second front surfaces of the two side plate portions are coplanar and substantially parallel to the first rear surface of the main plate portion.
10. The laser module according to claim 8 , wherein the two second front surfaces of the two side plate portions are inclined with respect to the first rear surface of the main plate portion, such that a distance between the second front surface and the first rear surface is gradually reduced in a direction from the first upper surface to the first lower surface of the main plate portion.
11. The laser module according to claim 9 , wherein the two second outer surfaces of the two side plate portions are substantially parallel to each other.
12. The laser module according to claim 10 , wherein the two second outer surfaces of the two side plate portions are substantially parallel to each other.
13. The laser module according to claim 9 , wherein at least one of the two second outer surfaces of the two side plate portions is inclined with respect to the other, such that a distance between the two outer surface is gradually reduced in a direction from the first upper surface to the first lower surface of the main plate portion.
14. The laser module according to claim 10 , wherein at least one of the two second outer surfaces of the two side plate portions is inclined with respect to the other, such that a distance between the two outer surface is gradually reduced in a direction from the first upper surface to the first lower surface of the main plate portion.
15. The laser module according to claim 1 , wherein the laser module is replaceably assembled in the projector, the projector comprises an optical engine module and a heat dissipation module, a positioning groove is disposed between the optical engine module and the heat dissipation modules for inserting the laser module, and the laser module is fixed in the positioning groove by the shoulder portion of the positioning member.
16. The laser module according to claim 15 , wherein the laser module being fixed in the positioning groove by the shoulder portion of the positioning member is realized by forming an internally threaded bore in each of the shoulder portion of the positioning member and a corresponding portion of the positioning groove, such that the shoulder portion of the positioning member is connected to the positioning groove by a screw.
17. The laser module according to claim 15 , wherein the projector further comprises a dustproof material disposed above the laser module, and the dustproof material covers at least the laser module and the positioning groove.
18. A projector, comprising: an optical engine module; a projection lens module, fixed to one side of the optical engine module; a heat dissipation module, wherein a positioning groove is disposed between the heat dissipation module and the light engine module; and a laser module, replaceably fixed in the positioning groove, wherein the laser module comprises: a positioning member, comprising a main plate portion and two shoulder portions, wherein the main plate portion comprises a first upper surface and a first lower surface opposite to each other, a first front surface and a first rear surface opposite to each other, and a first left side surface and a first right side surface opposite to each other, and the two shoulder portions extend on a plane of the first upper surface from the first left side surface and the first right side surface of the main plate portion, respectively; and a laser unit, fixed to the positioning member.
19. The projector according to claim 18 , wherein the optical engine module comprises a laser module mounting portion, the heat dissipating module comprises a laser module heat dissipating portion, and the positioning groove disposed between the optical engine module and the heat dissipation module is at least particially formed by the laser module mounting portion of the optical engine module and the laser module heat dissipation portion of the heat dissipation module.
20. The projector according to claim 19 , wherein the laser unit is fixed to the first front surface of the positioning member, and the first rear surface of the positioning member contacts the laser module heat dissipation portion of the heat dissipation module.
21. The projector according to claim 20 , wherein the first left side surface of the positioning member is substantially parallel or inclined with respect to the first right side surface, the positioning groove comprises a plurality of surfaces matching inclination angles of the first left side surface and the first right side surface, such that the surfaces of the positioning groove closely contact the first left side surface and the first right side surface of the positioning member when the laser module is fixed in the positioning groove.
22. The projector according to claim 20 , wherein the positioning member further comprises two side plate portions extending from the first rear surface of the main plate portion toward the first front surface along the first left side surface and the first right side surface, respectively, the two side plate portions and the main plate portion form a recess, the recess is configured to accommodate the laser unit, the two side plate portions are substantially parallel or inclined with respect to each other, the positioning groove comprises a plurality of surfaces matching inclination angles of the two side plate plates, such that the surfaces of the positioning groove closely contact the two side panel plates of the positioning member when the laser module is fixed in the positioning groove.
23. The projector according to claim 19 , wherein a hardness of the laser module heat dissipation portion of the heat dissipation module is greater than a hardness of the positioning member.
24. The projector according to claim 19 , wherein a hardness the laser module mounting portion of the optical engine module is greater than a hardness of the positioning member.
25. The projector according to claim 18 , further comprising a dustproof material covering at least the positioning groove.
26. The projector according to claim 18 , wherein the first lower surface of the main plate portion has a gap with a bottom of the positioning groove.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
September 24, 2019
July 6, 2021
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